TL780-05CKTTRG3

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TL780-05CKTTRG3 is one of the most important components in Linear Voltage Regulator. It is an integrated package of several components with various functions. The TL780-05CKTTRG3 to control the output voltage and current over a wide range of input voltages, while providing a large amount of protection features. It is an advanced and efficient low-dropout (LDO) regulator with features suitable for a variety of battery-operated applications.

Application Field

TL780-05CKTTRG3 are featured with low dropout voltage, low quiescent current, low operating current and fast transient response. It provides a suitable power supply for small appliances, battery-powered devices like portable media players and mobile phones, as well as most automotive applications. It helps to reduce system power consumption and to maximize battery life.The low dropout voltage (typical 0.6V) makes TL780-05CKTTRG3 suitable for portable applications where input voltages often fluctuate within a small operating range.

Working Principle

The TL780-05CKTTRG3 is based on a linear regulator topology. It has a dBugger circuit, a voltage reference, error amplifier, current limit and thermal shutdown to provide protection features. The input voltage is applied to the input of the LDO regulator and is stepped down to the required level of the output voltage at a controlled rate. The voltage reference sets the output voltage and the error amplifier compares the output voltage with the reference voltage. If the output voltage rises above the reference voltage, the error amplifier sends a signal to the top transistor. This reduces the current through the transistor and drops the voltage at the output of the LDO.

If the output voltage drops below the reference voltage, the error amplifier increases the current flowing through the top transistor. This increases the voltage at the output of the LDO. Once the output voltage has been set, the error amplifier adjusts the current through the top transistor to maintain the output voltage. The dBugger circuit provides additional protection by monitoring the output voltage and shuts-off the voltage in case of an over or under voltage.

The TL780-05CKTTRG3 also provides a wide range of protection features such as thermal shutdown, current limit, and output short-circuit protection. The Thermal Shutdown feature protects the LDO from excessive junction temperatures by cutting off the output voltage when the junction temperature exceeds a programmed temperature. The current limit feature sets an upper limit on the output current to prevent excessive power dissipation.

In addition to these protective features, the packaged version of TL780-05CKTTRG3 also provides an internal power-on reset for system reliability. The power-on reset ensures that the system is started in a safe state, and keeps it in a known state until the supply voltage reaches the recommended value. The output voltage is monitored and held at the programmed level as long as the input voltage is in the specified range.

Conclusion

TL780-05CKTTRG3 is a powerful and efficient linear voltage regulator with features suitable for a variety of applications. Its low dropout voltage and wide range of protection features make it an ideal choice for many battery-operated devices. It can help to reduce system power consumption, extend battery life and provide reliable output voltage regulation in a wide range of conditions.

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